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Jan. 27, 1931. is. w. SWIFT, JR 1,790,559

WEB FEEDING MECHANISM Filed July 9, 1928 v 4 Sheets-Sheet l 5 u 1 /2, IM

INVENTOR b g w: A it. Own/W} Jan. 27, 1931. w, sw JR 1,790,559

WEB FEEDING MECHANISM Filed July 9, 1928 ASheefs-Sheet 2 INVENTOR Jan.27, 1931. G. w. SWIFT, JR 1,790,559

WEB FEEDING MECHANISM Filed July 9, 1928 4 Sheets-Sheet 3 TicrEy TiE1E1.

INVENTOR GEORG W.SWIFT, JR.

WHY;

Jan. 27, 1931. G. w. SWIFT, JR

WEB FEEDING MECHANISM 4 Sheets-Sheet 4 Filed July 1928 Patented Jan. 27,1931 'UNITED STATES PATENT OFFICE- GEOBGE W. SWIFT, 33., OFBOIBDEFPJ.OFN, NEW JERSEY, ASSIGNOR TO GEORGE W. SWIFT, .13., INC., OFBOBDENTOWN, NEW JERSEY, A CORPORATION OF NEW JERSEY wan-manure uncmrsirApplication fled 1.1, 9, 192a. semino. 291,338.

This invention relates more especiall to that type of web-feedingmechanism in w ich continuouslydriven web-feeding rolls are arranged insuccessively operating pairs for maintaining a continuous movement of .aweb upon which they are arranged to operate.

The primary object of my invention is to provide an improvedconstruction and arrangement of parts in web-feeding mechanism of thischaracter wherein successive pairs of web-feeding elements may be adated in alternation to periodically release t eir grip upon the web forthe purpose of preventing the creasing-in of wrinkles which wouldotherwise be ironed in and thus cause im erfections in the product.

Sne of the objects of my invention is to provide improved web-feedingmechanism comprising successive couples of continuously rotatinfeed-rolls which are yieldably driven and a apted to operateintermittently, the arrangement being such that the feedrolls of onecouple are adapted to grip the web during the idle periods of thefeed-rolls in the other couple.

Another object of my invention is to provide an improved adaptation ofmy invention wherein successive couples of intermittently operativeweb-feedin rolls are adapted to serve as auxiliary we -feeding mechanismfor a machine which positively grips said web during its performance ofcertain functions in connection therewith.

Another object of my invention is to provide an improved constructionand arrangement of segmental s ring feeding mechanism in combination witweb-slitting and webperforating mechanisms.

An ada tation of my invention is shown on the drawings in connectionwith a continuously operatin web-folding machine similar to that whic isshown, described, and claimed in U. S. Patent No. 1,501,499, grantedinmy nameunder date of July 15, 1924. According to this patent, the web isfirst folded inwardl upon two lines which define a central unfol edzone; next upwardly upon two other lines parallel wit thefirst-mentioned lines, and finally upon a longitudinal line extendingcentrally through the unfolded central zone.

Another adaptation of my invention is shown in connection with a machinewhich im arts lon 'tudinal folds to a continuous we trims t e lateraledges of said web, and perforates the web transversely at periodicintervals.

Certain minor'features of m invention will be described in the followmgdescription and referred-to in the appended claims.

In the drawingswhich show a preferred embodiment of my invention,

Figure 1 is a side elevation of the longitudinal web-folding mechanismreferred to in my above-identified patent with my improved web-feedingmechanism attached thereto.

Figure 2 is an end elevation of the same taken from the" left of Fi re1.

Figure 3 is an enlarge top plan view of one of the web-feeding couples.

Figure 4 is an enlarged vertical section corresponding to the line 44 ofFigure 1, 'parts being broken away.

Figure 5 is a diagrammatic end elevation of a longitudinal web-foldingmachine in which my improved segmental feed mechanism is embodied in animproved arrangement with respect to web-slitting and web- 80perforating mechanisms.

Figure 6 is a front' end side elevation of the same.

Figure 7 is a top plan view of the webslitting mechanism detached.

Figure 8 is an end elevation of the same.

Figure 9 is a top plan view of the web-perforatmg mechanism detached;and

Figure 10 is an end elevation of the same.

Referring more articularly to the draw- 90 I ings, the upright rames 1and 2 are connected by lower side bars 3 and upper side bars 4. Saidupright frame 1 is provided with rearwardl presented lugs 5 in which isjournalled a r0 1 shaft 6 which-carries a roll 6a of paper. -Said webpasses over a webguiding roller 7 journalled in rearwardly presentedlugs 8 near the top of u rights 1, and thence downwardl and orwardlyaround the outer edges 0 a'pair'of inclined foldin bars 9. As the webpasses forwardly from t e lower ends of folding bars 9, the centralportion passes under transverse guide bars (not shown) and over a bed orplatform 10, the lateral edge portions of, said web being drawn inwardlybetween inclined folding bars 11 which have their lower ends adjacent tothe bed or platform but spaced therefrom to fold intermediate portionsof the web down upon the central longitudinal portion thereof as itpasses over the bed or platform 10. The lateral edge portions of the web6 are next drawn outwardly from the folding bars 11 and foldeddownwardly upon the previously folded portions of said web as they passbeneath the bottom ed es of folding frames 12 which complete the uplexdoubl folded three-ply web. The web thus folded next passes betweenpressure rolls 13 and thence downwardly over folding bars 14 which areinclined forwardly and inwardly toward the central longitudinal plane ofthe machine and which are adapted to impart a final longitudinal foldwhich superimposes the three-ply doubly-folded lateral portions of theweb one upon the other.

Referring now to Figures 3 and 4, two successively acting web-feedingcouples are shown. Each of said web-feeding couples according to theembodiment of my invention shown in Figures 3 and 4, comprises anelongated feed-roll 15 which is freely journalled upon a shaft 16, andin cooperation therewith on the oppositeside of the. longitudinallyfolded web, a pair of axially-spaced feed rolls or segmental web-feedingdisks 17 which are freely journalled upon a shaft 18. Secured to eachshaft 16 at one end of the elongated feed-roll 15 thereon, is a collar19 which cooperates with an abutment disk or collar 20 at the other endof said feed-roll for preventing axial displacement of said feed-roll.The abutment disk or collar 20 is secured to the shaft 16 by means of aset screw 21 and is provided with a radially presented post 22 to whichis connected one end of a helical spring 23. The spring 23 extendspart-way around the periphery of disk 20 and has its other end connectedto a pin 24 which is presented axially from the adjacent end of thefeed-roll 15. A stop pin 25 with which the feed-roll 15 is provided, isadapted to move to and fro within a peripheral recess-26 formed in thedisk 20, said peripheral recess bein provided at opposite ends withradial shoulders or abutments '27 for confining the movement of pin25'and thus limiting the angular movement of the feed-roH 15 withrespect to its shaft 16. In a similar manner, each of the segmentaldisks 17 is held against axial displacement upon its shaft 18 by meansof a fixed collar 28 onone side thereof and a recessed abutment disk 29on the other side thereof, each of said abutment disks being which movesa stop pin 31 which projects laterally from the disk 17. A helicalspring 32 is connected at one end to a post 33 carried by each abutmentdisk 29 and has its other end connected to a pin 34 carried by the disk17 Each of said segmental disks 17 is provided with a segmentalweb-engaging portion 17a which is adapted to cooperate with theperiphery of the elongated feedroll 15 with which it is coupled. Saiddisk is also provided with a relatively depressed peripheral portion 176which, as it passes the eriphery of elongated feed-roll 15, affordg abreathing interval for the web passing between it and said feed-roll.From an inspection of Figure 4,. it will be understood that thesegmental portions 17a of the segmental web-feeding disk.17 in the lowerwebfeeding couple, are displaced 180 degrees with respect to thesegmental portions 17a of the segmental feed disks of the upperwebfeeding couple. In effect, therefore, the larger portion of theweb-feeding effect of each couple is exerted alternately with respect tothat of the other couple. It will be apparent, however, that both ofsaid couples positively rip the folded web during brief periods 0 timeat the beginning of each period of activity.

According to the embodiment of my invention shown in Figures 1 to 4inclusive of the drawings, my invention contemplates an arrangement ofsuccessive web-feeding couples to serve as an auxiliary feedin mechanismfor amachine which'in addltion to certain prescribed fimctions which areperformed upon the web, is subjected to the burden of positivelygripping and feed ing the web therethrough. For the urpose of supplyingthis auxiliary feed to t e web, the present invention contemplates inconjunction with the positively acting draw of said machine, theprovision of successivecouples of web-feedin'g elements which operatewith a yieldable pull at periodic intervals and with the active periodsof said couples timed in alternation. As exemplified on the drawings,the web-engaging elements of the machine are represented by cylinders 35which are power-driven and connected to rotate in unison by means ofintermeshing spur-gears 36 to one of which power is transmitted by meansof an idler gear 37 which meshes into and is driven by a spur-gear 38keyed to the lower left hand feed-roll shaft 16 according to Figure 4.Each of the auxiliary feed-roll shafts 16 and 18 is provided with aspur-gear 39 by means of which the shafts of each web-feeding couple.are geared together. A power shaft 40 is provided with a driving pinion41 which delivers power to the left-hand spur-gear -39 of eachwebfeeding couple. Suitable means for apply ing pressure to thecooperating web-feeding provided with radial abutments 30 betweenelements ma be provided by means of compression springs 42 which may beinterposed etween adjustable abutment disks 43' and the bearings of thefeed-roll shafts 18.

Referring now to Figures 5 to 10 inclusive of the drawings, anotherembodiment of my invention is shown in connection with the delivery endof a web-folding machine of similartype to that illustrated in Fi re 1of the drawings. Thus, as shown in Flgures 5 and 6, the folded web afterpassing between upper and lower ressure rolls 13, has its finallongitudinal old imparted thereto as it is drawn downwardly over thedownwardly and inwardly inclined folding bars 14.

Referring to Figures 5 and 6, the longitudinally folded web as it movesfrom folding frame 14 is engaged on one side by deflecting roll 45 whichsupports and guides the folded web as it approaches a lateral edgetrimming device. As shown in Figures 7 and 8, this trimming device ismounted upon spaced parallel shafts 46 and 47 arranged on opposite sidesof the folded web. Ri idly mounted upon the shaft 46 is a spacer lock 48constructed in sections, said sections being secured to the shaft bmeans of screws or bolts 49. Abutting against opposite ends of thespacer block 48 are oppositely resented cutter disks 50 which are secureto the shaft 46 by means of set-screws 51. The shaft 47 carries axiallyspaced abutments or collars 52, each of said abutments being providedwith a threaded sleeve 53 upon which is threaded a knurled nut 54. Thisnut 54 is adapted to regulate the tension in a compression spring 55which is interposed between the nut 54 and a cutter disk 56 which ispresented oppositely to and has'runningengagement with the cutter disk50 corresponding thereto. 4

Auxiliary web-feeding means for maintaining a proper tension on the webas it is drawn between the cutters 50 and 56, are arrancged below saidcutters and preferably in- Figure 10 for imparting a series oftransverse perforations to the folded web as it moves downwardly betweenthe cylinders 59 and 60. In order to facilitate the movement of the.folded web between said perforator cylinders, an additional auxiliaryweb-feeding device is arranged below said cylinders and thereto bycylinders and 66.

ments 67 and 68 b means of which said cylinders are adapter 0 im art thezi zag folds to the folded web as in icated at t e bottom of Figure 5.Interposed between the auxiliary feed rolls 63, 64 and the cylinders 65,66 are cooperating star-rolls 69 between which the longitudinally foldedweb passes prior to the transverse folding imparted The purpose of starfeed-rolls 69 is to keep the longitudinally folded web brushed outstraight so that it will be properly registered in respect to thefolding blades mounted in the cylinders 65 and 66. The folded web isthus prevented from being drawn back or out of alignment. The starfeed-rolls 69 are made relatively small so that the may be placed asnear as possible to the fo ding cylinders for securing the best results.

I claim 1. In a web-feeding mechanism, the combination of a pair offeed-rolls arranged on opposite sides of a web and having their peripheries cooperatively engaging said web, and means for yieldablydriving said feedrolls, one of, said feed-rolls being segmental in formto adapt said feed-rolls to operate intermittently upon said web.

2. In a web-feeding mechanism, the combination with two pairs offeed-rolls, the

feed-rolls of each pair being arranged on opposite sides of a web to befed thereby, of means for yieldably driving one of said feedrolls ofeach pair, one of said feed-rolls of each pair being segmental in formand periodically operative on the web at different times than thesegmental roll of the other pair of feed-rolls.

In a web-feeding mechanism, the combination with a pair of feed-rollsarranged on opposite sides of a web, one of said feedrolls beingsegmental in form to permit an intermittent cooperation of saidfeed-rolls for feeding said web, and means for,yieldably driving one ofsaid feed-rolls, said driving means being adapted to come intounyieldingdriving relation to said yieldably driven feed-roll after apredetermined amount of yield.

, 4. In a web-feeding mechanism, the combination with a pair offeed-roll shafts arranged on opposite sides of a Web, of a feedrollfreely journalled upon each of said shafts, and a ieldable drivingconnection between each said feed-rolls and the shaft upon which it isjournalled, said feed-rolls cooperatively engaging said web in thecommon plane of their axes.

5. In web-feeding mechanism, the combination with a plurality ofpower-driven shafts arranged in pairs, of 'a feed-roll freely journalledon each of said shafts, and a yieldable driving connection between eachof said feedrolls and the shaft upon which it is journalled, one of thefeed-rolls in each pair of shafts being provided with a segmentalperipheral portion operative upon the other feed-roll in that pairduring a portion only of each rotation.

6. In web-feeding mechanism, the combination with a plurality of pairedshafts geared together to rotate in unison, the shafts of each pair beinarranged on opposite sides of the plane of feed, of a feed-roll freely journalled on one shaft of each pair of said shafts, a segmentalfeed-roll freely journalled on the other shaft of each pair of saidshafts, and a yieldable driving connection between each of saidfeed-rolls and the shaft upon which it is journalled, said pairs offeed-rolls being operative for feeding the web during alternate periodsof activity.

I 7. In web-feedin mechanism, the combination with a fee -roll rotatableabout an axis, of a shaft rotatable about an axis parallel to the axisof said feed-roll, axiallyspaced segmental feed-rolls freely journalledon said shaft, said segmental feed-rolls being adapted to intermittentlycooperate with the first-mentioned feed-roll, and a yieldable drivingconnection between each of said segmental feed-rolls and said shaft.

8. In web-feeding mechanism, the combination with two feed-rollsrotatable on parallel axes on one side of a web, of means for yieldablydriving each of said feed-rolls, a rotary shaft arranged opposite toeach of said'feed-rolls on the other side of said web, and a segmentalfeed-roll'mounted on and driven by each of said shafts.

9. In web-feeding mechanism, the combination with two rotary feed-rollsengagin one side of a web, of means for yieldably driving saidfeed-rolls, rotary shafts mounted-oppositelywith respect to saidfeed-rolls respectively, segmental feed-rolls freely journalled. on eachof said shafts and engagmg the other side of said web, yieldable drivingconnections between each of said segmental feed-rolls and the shaft uponwhich it is journalled, and means for rotating said shafts in unison,one of said segmental feedrolls being arranged 180 degrees in advance ofthe other-of said segmental feed-rolls.

' 10. Web-feeding mechanism comprising aplurality of pairs of feed-rollshafts, the feed-roll shafts of each of said pairs being arranged-onopposite sides of a web to be posite ends secured to said driving diskandfeed-roll respectively, one of said feed-rolls in each pair having asegmental periphery to permit a release of the web during eachrevolution of the segmental feed-roll.

11. Web-feeding mechanism comprising successive pairs of feed-rollshafts oppositely arranged with respect to a web, means positivelyconnecting all of said feed-roll shafts to rotate in unison, and afeed-roll freely j ournalled on each of said shafts, said feed-rollbeing provided with a yieldable driving connection with its shaft.

12. Web-feedin mechanism comprising successive pairs 0 feed-roll shaftspositively geared together to rotate in unison and oppositely arrangedwith respect to a web, a feed-roll freely journa-lled on each of saidshafts, one of said feed-rolls in each pair being provided with asegmental contour to permit aperiodic release of the web at that point,and a yieldable connection between each of said shafts and the feed-rolljournalled thereon.

13. In web-feeding mechanism, the combination with two power-drivenshafts arranged on spaced parallel axes on one side of a continuouslymoving web, a feed-roll freely journalled on each of said shafts andhaving their peripheral surfaces operating on said web, a yieldabledriving connection between each of said shafts and the feed-rolljournalled thereon, and segmental feed-roll disks cooperatively arrangedwith respect to said feed-rolls respectively.

14. In web-feeding mechanism, the combination with two power-drivenshafts geared together and arranged on spaced parallel axes on one sideof a continuously moving web; of a feed-roll freely journalled on eachof said shafts and operating on said web, a yieldable driving connectionbetween each of said shafts and the feed-roll j ournalled thereon, ashaft geared to each of the first-mentioned shafts and arranged on theopposite side of said web, segmental feed-rolls freely j-ournalled onthe last-mentioned shafts, and a yieldable driving connection betweeneach of said segmental feed-rolls and the -sha upon which it isjournalled.

15. In web-feeding mechanism, the combination with a plurality of pairedshafts geared together to rotatein unison, the shafts of each pair beingarranged on opposite sides of a continuously moving web, of an elongatedfeed-roll freely j ournalled on one of the shafts in each pair ofshaft-s, axially-spaced segmental feed-rolls freely journalled on theother shaft of each pair of shafts, a driving disk for each of saidelongated feed-rolls, a driving disk for each of said segmental feed-'rolls, each of said driving disks being secured to the shaft upon whichthe corresponding elongated or segmental feed-roll is joiirnalled, and ayieldahle driving connection between each of said driving disks and thefeed-roll corresponding thereto.

16. In a machine of the character described, the combination with a pairof cooperating cylinders adapted to operate upon a longitudinally foldedweb, of continuously running web-feeding mechanism adapted to feed alongitudinally folded web to said cylinders, said web-feeding mechanismcomprising two power-driven shafts arranged on spaced parallel axes onone side of said web, a feed-roll freely journalled on each of saidshafts and having their peripheral surfaces operating on said foldedweb, a yieldable driving connection between each of said feed-rolls andthe shaft upon which it is journalled, and segmental feed-rollscooperating with the first-mentioned feed-rolls respectively andoperating on the other side of said web, and cooperating star feed-rollsinterposed between said continuously running web-feeding mechanism andsaid cooperating cylinders, said star feed-rolls being ofrelatively'small diameter in respect to said cooperating cylinders anddisposed in close juxtaposition thereto within the angular space formedbetween the peripheries of said cylinders.

17. In a web-feeding mechanism, the combination of two pairs ofcooperating feedrolls, one feed roll in each of said pairs beingyieldably driven, one pair of said cooperating feed-rolls being spacedfrom the other pair of said cooperating feed-rolls longitudinally of aweb fed thereby. one of the feedrolls in each of said pairs having aportion of its periphery removed to render itoperative for only aportion of each revolution.

18. In a web-feeding mechanism, the combination of two pairs ofcooperating yieldably driven feed rolls, one feed roll in each of saidpairs being of segmental form to render it periodically operative, onepair of said cooperating feed-rolls being spaced from the other pair ofsaid cooperating feed-rolls longitudinally of a web fed thereby.

19. In a web-feeding mechanism, the combination ofvcooperating cylindersarranged on opposite. sides of and operating upon a web passing betweenthem, a pair of yieldably-driven feed-rolls operating upon said web forfeeding it to said cooperating cylinders, and a pair of star feed-rollsinterposed between said yieldably-driven feed-rolls and said cooperatingcylinders.

20. In a web-feeding mechanism, the combination of cooperating cylindersarranged on opposite sides of and operating upon a web passing betweenthem, a pair of yieldably-driven feed-rolls operating upon said web forfeeding it to said cooperating cylinders, and a air of star feed-rollsinterposed between sai yieldably-driven feed-rolls and said cooperatingcylinders, said star-feed rolls being of relatively small diameter withrespect to said cooperating cylinders and within the angular cylindricalspace formed between said cylinders on the side'towards inoperative.

' GEORGE W. SWIFT, JR.

